Recently Updated Pages
Optional chaining
Optional chaining There is this problem that if the object that you are accessing might or might...
Constructor and "new" operator
Constructor function Function that is meant to be a constructor are named with capital letter fi...
Code structure and data types
Script tag You can insert JavaScript program into HTML document using the <script> tags. You ca...
Garbage collection
Reachability In JavaScript garbage collection is implemented through something called reachabili...
Functions, function expression, arrow function
Function Declaration To declare a function follow the syntax: function function_name(parameter1...
Loops and switch statement
While and for loop They are the same as in Python, C, and Java while (condition) { // Repeat ...
Introduction
What is JavaScript It is a scripting language that is the core of websites, along with HTML and ...
Variables
Variables A named storage for storing data. There are couple way of creating a variable var ke...
Type Conversion
String Conversion You can call the String() function to explicit convert a value to a string St...
Conditional and Logical Operator
Ternary Operator let accessAllowed; if (age > 18) { accessedAllowed = true; } else { ...
How To Install NodeJs + NPM (Linux)
1. Head to the official repository for Node.js distributio The link is right here: https://gith...
Virtual File System
Superblock Superblock is metadata about the filesystem. It define the name of the file system (e...
Diff Command Line Tool
https://www.computerhope.com/unix/udiff.htm#How%20diff%20Works
find glob expansion
When using regular expression in find, you have to quote the name parameter to prevent glob expan...
Backslash Escapes
See link for valid information. This page is outdated. When you are working with special charact...
Echo Clear Previous Line
The escape string \033[0K will clear the entire line, this string are cross-platform so it will w...
Disk Usage utility
df - File System Disk Usage The command df reports the total disk usage on the mounted file syst...
Regex Escape Characters
Backslash in /regex/ Expression When you are trying to create a literal backslash match in Ruby,...
What is *? In Regular Expression?
https://stackoverflow.com/questions/3075130/what-is-the-difference-between-and-regular-expressions